Application displays blank page when run with java.lang.NoClassDefFoundErr

Hi All,

My application was running fine. I had added another view and some minor changes. When I run the application, It displays blank page, but when I referesh it I get the following error. Has anyone encountered this issue. I had made similar changes before had no problem.

Details: The following error occurred while parsing the HTTP request: java.lang.NoClassDefFoundError: com.sap.engine.services.servlets_jsp.lib.jspparser.exceptions.JspParseException.

Thanks